how works encoder in plc

0 Answers  

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Profibus DP is a multi-master system. Would it work on RS-485 4W or not, and justify your answer

1 Answers   EIT,

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what is burner management system?

2 Answers   Alstom,

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What is the difference between relative vibration

4 Answers   Desein,

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why are use only 4 to 20ma. signal.

9 Answers   Otsuka,

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suppose there is gas flow meter I want to know weather meter calibration is done at high pressure or low pressure? pls justify.

2 Answers   Siemens,

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What is the procedure of changing a Faulty Module of Allen Bradley PlC without stopping the Process

1 Answers   Siemens,

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a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?

1 Answers  

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capillary type tranmitter using remote seals and capillary tubes filled with liquid of known of known density so if you wanna callibrate it just close block valve just before capilary @ high side & connect druck apply it's calibrated range pressure as normal calibration ensure low side block valve must be closed & if you asking commissioning so this is not a DP type pressure tx so simple if you wanna put in servie this tx just open high side block valve & than low side block same way i do it but still transmitter showing -13 ma.just tell me what i want to do ?

1 Answers   Gasco,

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If we increase D what will be the controller action?

2 Answers  

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defination of plc? why we use plc? application of plc? advantage of plc?

4 Answers  

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Explain types of valves?

0 Answers  

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